Description

This course has been selected by Udemy for inclusion in Udemy Business — Udemy’s curated collection of high-quality courses used by organisations worldwide.“Udemy Business is a curated (carefully chosen) selection of high-quality Udemy courses — like yours.” — Udemy“Only 3% of all courses are chosen for Udemy Business.” — UdemyThe course is fully updated to Java 25 and covers Java 8, 11, 17, 21, and 25 — showing how modern Java evolved across these releases.Since being selected for Udemy Business, the course has been significantly expanded and updated, including:• Spring Boot 3• Java 21 and Java 25 content• 2 Full OCP Certification Practice Tests• 5 Additional OCP Practice Quizzes• All code now available on my GitHub repositoriesWho this course is for (important)This is an advanced Java course.It is designed for:Developers who already know Java fundamentalsLearners who want to properly understand modern Java (8 → 25)Those preparing for Oracle OCP certificationsProfessionals who want deep understandingNote: Java fundamentals are not covered (classes, interfaces, operators, basic syntax).The course starts immediately with Java 8 lambdas and streams.What makes this course differentMany Java courses:Stop at Java 8 or Java 11Treat newer versions as bolt-onsFocus on syntax rather than reasoningYou will:Learn how Java evolved from Java 8 through Java 11, 17, 21, and 25Understand why language features exist, not just how to use themWork through assignments that evolve across Java versionsLearn with both real-world development and certification in mindTopics are explained using:Clear theoryExtensive, annotated code examplesAssignments that reinforce understandingVideo explanations for all practice questionsWhat students say(A small selection — more reviews are available below)“Great course, great explanation. The best course in Java I have seen so far.” — Kaylan AD“I am nearing retirement. I have learned more about lambdas here than in the rest of my career.” — Robert R“This course is a jewel… I passed the OCA and hope to pass the OCP now.” — Yigit K.“Definitely the best Java course I’ve ever taken… especially the Java 21 features.” — Anna“Excellent detail, perfect pace, and outstanding explanations.” — Ricardo Q.”So far its the best course for java professional who want to start from new features of java 8″ — Ankit M.Course overviewJava currently has five Long-Term Support (LTS) releases:Java 8, 11, 17, 21, and 25 — and this course covers all of them.This course is the successor to my other Udemy Business course:“Java 8 OCA (1Z0-808) Certification – Master the Fundamentals”.As a result:Java fundamentals are assumedThe course begins with advanced Java 8 topicsEach later Java version builds on the previous oneJava 8 – Advanced TopicsLambda ExpressionsStreamsGenericsCollectionsConcurrencyJDBCFile I/O and NIO.2SerialisationLocalisationAssignments are included for lambdas, streams, and collections.Java 11Modules (examined in detail with examples)Local Variable Type Inference (LVTI)Private interface methodsAnnotationsSecurityJava 17Sealed classesRecordsSwitch expressions and pattern matchingText blocksA significant assignment covering all Java 17 topics is included.Java 21Unnamed classes and instance main methods (preview features)Record patternsPattern matching for switchSequenced collectionsVirtual ThreadsAn assignment building on the Java 17 assignment is included.Java 25Markdown documentationUnnamed variables and unnamed patternsModule import declarationsCompact source files and instance main methods (finalised)Flexible constructor bodiesScoped valuesStream gatherersAn assignment building on the Java 21 assignment — and incorporating all Java 25 features — is included.Spring Boot 3 Application (updated to Java 25)Configuring a Spring Boot application and dependenciesUnderstanding how RESTful applications workDependency Injection / Inversion of ControlArchitecture overviewCode explained in detailTesting with PostmanAn assignment is used to reinforce the material, and its solution is explained in detail.OCP Certification Preparation2 Full OCP Practice Tests50 questions each120-minute time limit68% pass mark (as per Oracle exams)Every question has a detailed video explanationEven if you do not plan to take the certification, the solution videos provide excellent learning opportunities.5 OCP Practice Quizzes69 MCQ questions in totalEvery question explained with a video solutionThis course supports preparation for:Java 8 OCP (1Z0-809)Java 11 OCP (1Z0-819)Java 17 OCP (1Z0-829)It also works very well alongside the Enthuware OCP Certification tool.About the instructorI am a PhD-qualified University lecturer and have been teaching since 2002.For over 13 years, I have taught advanced Java on a bespoke Masters programme on behalf of a highly regarded software company.I have co-authored two books:Learn Java with ProjectsJava Memory ManagementI love teaching, and this course brings together:My academic backgroundMy industry experienceMy passion for clear, structured explanationsA strong attention to detail, particularly suited to Oracle Java certificationsFinal noteThis course is designed to give you:A deep understanding of modern JavaConfidence in real-world developmentStrong preparation for Oracle OCP examsIf you already know Java fundamentals and want to truly master Java 8 through Java 25, this course is for you.More student feedback“Extraordinary Explanation.” — Darshan P.“The course is amazing, learned a lot of good things.” — Rakesh L.“This course provides an exceptional hands-on learning experience… invaluable resource for Java developers.” — Naveen KG“Sean is technically superior in Java; he’s the best I know.” — Axel B.“This course is a jewel… Sean answers questions… I passed the OCA… hope to pass the OCP now.” — Yigit K.“Easy to follow and straight to the point.” — Daniel M.“Great how detailed it is.” — Ali A.“Excellent – especially like the detail and pace.” — Alan C.“One of the best courses so far… perfect talking speed… content is excellent.” — Ricardo Q.“Very useful exercises and really interesting syllabus.” — Laura“Clearly explained, easy to follow and understand. Good code examples.” — Ugyen N.